Improvement in shipsj pumps



UNITED STATES PATENT OFFICE.

THOS. S. SPEAKMAN AND NOAH HAND, OF OAMDEN, NEW JERSEY.

IMPROVEMENT IN SHIPS PUMPS.

Specification forming part of Lei-ters Patent N0. 51,094, dated November21, 1865.

To all whom it may concern:

Be it known that we, T. S. SPEAKMAN and NOAH HAND, both of Camden,Camden county, New Jersey, have invented an Improved Ships Pump 5 and wedo hereby declare the following to be a full, clear, and exactdescription of the same, reference being had to the accompanying'drawings and to the letters ot reference marked thereon.

Our invention consists in a pump-barrel which is provided with the usualpiston and combined with certain pipes and valves described hereinafter,and arranged in the hold of avessel so that the bilge-water will hedrawn into the barrel and expelled from the same into the sea at oneside of the piston at the same time that fresh sea-water is admitted tothe opposite side of the piston and expelled into the hold.

Our invention further consists in certain devices, arranged as describedhereinafter, for indicating the depth of water in the hold.

In order to enable others skilled in the art to make and use ourinvention, we will now proceed to describe its construction andoperation.

On reference tothe accompanying drawings, which form a part of thisspecification, Figures l and2 are sectional elevations of our improvedships pump, Fig. 3, a section on the line 1 2, Fig. 1; and Fig. 4, asection on the line 12, Fig. 2.

Similar letters refer to similar parts throughout the several views.

A is the bottom of a vessel, B the lower deck, and G one of the upperdecks.

On the deck B rests the pump-barrel E, at the lower end of which is achamber, F, and in which slides the piston G. From thelower part of thechamber F a pipe, H, projects through the deck B into the bilge-water inthe hold of the vessel, and at the upper end ofthe pipe is a valve, a,which opens upward, Fig. 2.

At the side ot' a chamber, F, is a case, Gr', which communicates withthe chamber F through au opening to which is adapted a valve, a', andfrom the lower side of the said case a tube, b, projects through boththe deckB and the bottom A of the vessel.

A pipe, H', communicates through an opening, to which is adapted avalve, c, with the upper end of the cylinder E, the lower end of thepipe projecting into a perforated distributingpipe,1,\vhich extendsalong the under side of the deck B.

At the upper end ot the barrel E is a case, J, which communicates withthel cylinder through an opening, to which is adapted a valve, e, andfrom the under side of the case a pipe, K, projects through the deckBandthe bottom A of the vessel, the said pipe being provided with avalve-cock, d, which is operated by a rod, d', extending to the upperdeck.

Around the barrel E and the pipes connected to the same is a casing, L,and near the latter is a casing, M, open at the lower end, which extendsinto the bil ge-water.

From the upper end ot the casingM a tube, f, projects through the upperdeck, and in this tube slides a rod, g, the lower end of which isconnected to a float, N. At the upper end of the rod is a finger, i, thepoint of which is opposite an index, O, the position of the fingeropposite the index indicating the height of the bilge-water in the hold.

As the piston Gr is raised, as shown in Fig. 2, the valve arwill beclosed and the valve a opened, so that a quantity of the bilge-waterwill be drawn through the tube H into the chamber F and into thecylinder, while at the same time the fluid in the cylinder above thepiston will be expelled through the tube H into the distributing-pipe I,and through the perforations in the latter into the hold. As the pistondescends, Fig. l, the valve a will close and the valve a will be opened,so that the bilge-wa-ter beneath the piston will be forced into the caseG and through the pipe b into the sea, while at the same time the valvec above the piston will be closed, the valve e being opened,so that asupply of fresh sea-water may be introduced into the barrel through thepipe K and case J.

It will be apparent that a continuous reciprocatin g motion imparted tothe piston will thus rapidly effect the expulsion into the sea of thefoul bilge-water from the hohl and at the same time replace the same byan equal quantity of fresh sea-water.

Whemin consequence of a leak or from other causes, it may be desired todiminish the quantity of Water inthe hold, the oook d may be turned soas to close the pipe K, the admission of fresh Water being thusdiscontinued, While the bilge-water only is introduced into and expelledfrom the pump.

Without confining ourselves to the exact construction and arrangement ofthe parts shown and described,

We claim as our invention and desire to secure by Letters Patent- 1. Thepump-barrel E, with its piston G, arranged in the hold of a vessel andoperating in combination with the Withindeseribed pipes and valves ortheir equivalents, substantially as and for the purpose speoiied.

2. The combination of the case M, tube f, iioat N, rod g, nger i, andindex O, as arranged in relation to the foregoing.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

THOMAS S. SPEAKMAN. NOAH HAND.

Witnesses:

CHARLES E. FOSTER, W. J. R. DELANY.

